Juice heating unit



July 11, 1939. G." H. TAY 2,166,027

JUICE HEATING UNIT Fued June 22, 1958 Patented July 11, 1939 .PATENT oFFlcE- nuca HEATING mur George H. Tay, Philipsbm'g,` Pa., asslgnor to Lee Metal Products Company, Inc., Philipsbux'g,

Application June Z2,

7 Cla.

Coils commonly used for the cooking of juices become cakecl with solids deposited from the juices after comparatively short periods of use;

and it becomes necessary to remove the coils periodically from the tanks to clean them. In many cases, this deposit on the coils is caused by the condensation of steam in the lower parts of a heating coil. Where such condensation occurs, there isa lowering of temperature which causes the `uice in Contact with the cooier'parts ci the coils to caire thereon. These deposits act somewhat as a heat insulator, and increase the rate of deposit until the whole coil becomes caked and practically useless until the deposits shall have been removeclthereirom.

A further object of the present invention,

thereore, is to provide a juice heating unit in whichY the heating elements are constructed to prevent the calring of solids on any part thereof, and which `can be readily cleaned, when necessary, Without removal oi the unit from the tants.

another object oi the invention is to provide a juice heating unit of the character relerred to Winch can oe manufactured as separate unit adapted to he connected detachaloly to the not torn o any ordinary tank.

Other objects ci the invention will become op: parent as the detailed description thereoi pro seeds.

ln the drawing:

Figure l is a central vertical section ci a heating unit constructed accordance this invention, and illustrated applied to the settore of tanlrand Figure 2. is .a horiaontal section tali-en on. the line .2-0 ci? ligure l.

is ahorro in the drawing, 'the unit comprises a tubular ring El, connecter? at di arnetrically opposite sides to an inner cylindre` l and an outside cylinder 5. These cylinders and 'tubular ring are coaxial, and space ice- 'rfeen the lower edges oi the cylinders is closed Toy a :dat bottom ring (i.

The 'tubular ring 3 and the liottorn ring G 193e, serian No. 215,239

(ci. 25a-2cv) end to a source of supply of steam, is passed v through an aperture 9 in the bottom ring' S and across the chamber formed by the cylinders fl and 5 to an aperture it formed in the tubular ringe to receive with steam tight t the upper end of said pipe t.

The cylinders i and 5 are preferably corrugated; and have their corrugation arranged perpendicular' to the axis of the unit. The lower edges of both cylinders are cut wider on the sides thereof diametrically opposite to the steam pipe il in order to allow for drainage of condensates from the chamber. A drainage pipe il is Welded, or otherwise suitably secured, to

the ilat bottom ring t at the lowest point thereof so as to ensure complete drainage of the condensate.

The cylinders may be plain or corrugated, accardineJ to the metal employed in their construction, or the pressure which they are required to withstand. Preferably, they are corrugated; and the corrueations are iormed parallel to each other to s rengthenthe Walls olf the chamber by the coaxial cylinders. Steel rings l2 may loe seated in any desired number oi these oorrugations within the lchan'iher to add to the strength or the walls thereof and may be permanently secured by Welding or otherwise to said walls. in addition to strengthening the Walls of 'the chamber, these rings i2 break. up or prevent streams of Water of condensation :forming on the cylinders.

lower" ci the pipes and il are provided with flanges lll and lf3, respectively to seat on the bottom ci a tenir lfb pro-n vided with apertures through which said pipes project. The projecting ends of said pipes leeyond the i3 and lil are screw 'ihr Ided to receive the nuts i5 and 9G, respectively which he adjusted against the bottom of the tanlr to clamp the heating unit securely in operative pcsition. The tenir ld may be provided with the usual vaive controlled drain pipe ll.

will he obvious from inspection of the drawing that the heating unit may he applied to and removed bodily from the tank. lll or any other tank adapted or the reception oi such unit. it will also 'ce obviousthat the cleaning of bothv inner and outer surfaces of the unit can be readily effected by running a swab around all the exposed surfaces, while the unit is maintained in position in the tank;

What I claim is:

l. A heating unit adapted to be detachably connected to the bottom of a tank and comprising: two coaxial sheet metal cylinders spaced apart radially, a circular tube secured to the top edges of each of' said cylinders, a ring secured to the bottom edges of said cylinders, said tube and ring forming with said cylinders a closed annular heating chamber, said tube being provided with apertures communicating with said chamber, means for conducting beating iluid to said tube, and means connected to said ring for drainin said chamber.

2. A heating unit adapted to lbe detachably connected to the bottom oi a tank and comprising: two coaxial sheet metal cylinders vspaced apart radially, a circular tube secured to the top edges or each of said cylinders, a ring secured to the bottom edges of said cylinders.'said tube and ring forming with said cylinders a. closed annular heating chamber, one side of said chamber being longer than the diametrically opposite side. means for conducting a heating fluid to said tube at the. top of the shorter side 'of said chamber, and draining means connected to said ring at the bottom of the longer side of Said chamber'.

3. A heating unit adapted to be detachably connected to the bottom of a tank and comprising: two coaxial sheet metal cylinders spaced apart radially, a circular tube secured to the top edges of each of said cylinders, a ring secured to the bottom edges of said cylinders, said tube and ring forming with said cylinders a closed annular heating chamber, one side oi' said chamber being longer than the diametrically opposite side, a pipe extending through said ring and across said chamber into communication with said tube at the top of said shorter side, and a drain pipe connected to said ring at the longer side of said chamber. .1 Y

'4. A heating unit adapted to be detachably connected to the bottom of a tank and comprising: two coaxial sheet metal cylinders spaced apart radially and closed at the top and bottom edges to form a closed annular chamber, means for heating said chamber. the walls of said cylinders being provided with corrugations substantially perpendicular to the axis of said chamber, and means on the corrugations within said chamber to interrupt the downward dow of condensates on said walls.

5. A heating unit adapted to be detachably connected to the bottom of a tank and comprising: two coaxial sheet metal cylinders spaced apart radially and closed at the top and bottom edges to form a closed annular heating chamber,

. means for conducting heating huid to the top of of said iluid from the bottom of said chamber,

said cylinders being provided Vwith corrugations Substantially perpendicular to the axis of said chambenand stifleuing rings seated in corrugations of the cylinders within said chamber, said stiiening rings being circular in cross-section and projecting into said chamber from the opposed surfaces thereof to form means for interrupting the downward now of water of condensation.

7. In apparatus for heating liquids, a tank, a

heating unit comprising: two coaxial sheet metal cylinders spaced apart radiallya circular tube secured to the top edges of each of said cylinders, a ring secured to the bottom edges ofsaid cylinders, said tube and ring forming with said cylinders a closed annular heating chamber, one side of saidchamber being longer than the diametricaliy opposite side. a pipe extending across the shorter side of said chamber intocommunieation with said tube at the top oi said shorter side for conducting heating fluid to said tube, a drain pipe extending through said ring at the longer side of said chamber, and means for detachably securing said pipes to a support.

GEORGE H. TAY. 

